Sunan Abi Dawud 5154
سنن أبي داود#5154SahihAbu Hurairah reported the Messenger of Allah (May peace be upon him) as saying:He who believes in Allah and in the last day should honour his guest; he who believes in Allah and in the last day should not harm his neighbor; he who believes in Allah and in the last day should speak good or keep silence
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiSahih Bukhari (6138) Sahih Muslim (47)
In-book reference: 43:382